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ee.ImageCollection.filter
使用集合让一切井井有条
根据您的偏好保存内容并对其进行分类。
对此集合应用过滤条件。
返回过滤后的集合。
用法 | 返回 |
---|
ImageCollection.filter(filter) | 集合 |
参数 | 类型 | 详细信息 |
---|
此:collection | 集合 | Collection 实例。 |
filter | 过滤 | 要应用于相应集合的过滤条件。 |
示例
代码编辑器 (JavaScript)
// The GOES Mesoscale images come in two domains.
// Separate the two groups using ee.Filter.eq.
var goes17_mcmipm = ee.ImageCollection('NOAA/GOES/17/MCMIPM');
var goes17_mcmipm_day =
goes17_mcmipm.filterDate('2020-09-26', '2020-09-27');
var d1 = goes17_mcmipm_day.filter('domain == 1');
var d2 = goes17_mcmipm_day.filter('domain == 2');
// domain 3 does not exist.
var d3 = goes17_mcmipm_day.filter('domain == 3');
print(goes17_mcmipm_day.size());
print(d1.size());
print(d2.size());
print(d3.size());
Python 设置
如需了解 Python API 和如何使用 geemap
进行交互式开发,请参阅
Python 环境页面。
import ee
import geemap.core as geemap
Colab (Python)
# The GOES Mesoscale images come in two domains.
# Separate the two groups using ee.Filter.eq.
goes17_mcmipm = ee.ImageCollection('NOAA/GOES/17/MCMIPM')
goes17_mcmipm_day = goes17_mcmipm.filterDate('2020-09-26', '2020-09-27')
d1 = goes17_mcmipm_day.filter('domain == 1')
d2 = goes17_mcmipm_day.filter('domain == 2')
# domain 3 does not exist.
d3 = goes17_mcmipm_day.filter('domain == 3')
print(goes17_mcmipm_day.size().getInfo())
print(d1.size().getInfo())
print(d2.size().getInfo())
print(d3.size().getInfo())
如未另行说明,那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可,并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情,请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC):2025-07-26。
[null,null,["最后更新时间 (UTC):2025-07-26。"],[[["\u003cp\u003e\u003ccode\u003eImageCollection.filter()\u003c/code\u003e allows you to apply a filter to an ImageCollection, resulting in a new collection containing only the images that match the filter criteria.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003efilter\u003c/code\u003e argument accepts a Filter object, such as one created with \u003ccode\u003eee.Filter.eq\u003c/code\u003e, to define the filtering conditions.\u003c/p\u003e\n"],["\u003cp\u003eThis method is useful for subsetting collections based on properties like date, metadata, or image content.\u003c/p\u003e\n"],["\u003cp\u003eApplying a filter with criteria that no images satisfy will return an empty collection.\u003c/p\u003e\n"]]],[],null,["# ee.ImageCollection.filter\n\n\u003cbr /\u003e\n\nApply a filter to this collection.\n\n\u003cbr /\u003e\n\nReturns the filtered collection.\n\n| Usage | Returns |\n|----------------------------------|------------|\n| ImageCollection.filter`(filter)` | Collection |\n\n| Argument | Type | Details |\n|--------------------|------------|---------------------------------------|\n| this: `collection` | Collection | The Collection instance. |\n| `filter` | Filter | A filter to apply to this collection. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// The GOES Mesoscale images come in two domains.\n// Separate the two groups using ee.Filter.eq.\nvar goes17_mcmipm = ee.ImageCollection('NOAA/GOES/17/MCMIPM');\nvar goes17_mcmipm_day =\n goes17_mcmipm.filterDate('2020-09-26', '2020-09-27');\n\nvar d1 = goes17_mcmipm_day.filter('domain == 1');\nvar d2 = goes17_mcmipm_day.filter('domain == 2');\n// domain 3 does not exist.\nvar d3 = goes17_mcmipm_day.filter('domain == 3');\n\nprint(goes17_mcmipm_day.size());\nprint(d1.size());\nprint(d2.size());\nprint(d3.size());\n```\nPython setup\n\nSee the [Python Environment](/earth-engine/guides/python_install) page for information on the Python API and using\n`geemap` for interactive development. \n\n```python\nimport ee\nimport geemap.core as geemap\n```\n\n### Colab (Python)\n\n```python\n# The GOES Mesoscale images come in two domains.\n# Separate the two groups using ee.Filter.eq.\ngoes17_mcmipm = ee.ImageCollection('NOAA/GOES/17/MCMIPM')\ngoes17_mcmipm_day = goes17_mcmipm.filterDate('2020-09-26', '2020-09-27')\n\nd1 = goes17_mcmipm_day.filter('domain == 1')\nd2 = goes17_mcmipm_day.filter('domain == 2')\n# domain 3 does not exist.\nd3 = goes17_mcmipm_day.filter('domain == 3')\n\nprint(goes17_mcmipm_day.size().getInfo())\nprint(d1.size().getInfo())\nprint(d2.size().getInfo())\nprint(d3.size().getInfo())\n```"]]